/* Courier Service - Professional Business Theme */
:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --secondary: #e53e3e;
    --accent: #38a169;
    --warning: #dd6b20;
    --light: #f7fafc;
    --dark: #2d3748;
    --border: #e2e8f0;
    --sidebar-width: 260px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: var(--light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-light); }
.btn-secondary { background: #718096; color: white; }
.btn-success { background: var(--accent); color: white; }
.btn-danger { background: var(--secondary); color: white; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border);
}

.card-header {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.2);
}

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
}
.table th, .table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.table th {
    background: #f8fafc;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.table tbody tr:hover {
    background: #f8fafc;
}

/* Alert */
.alert {
    padding: 14px 20px;
    border-radius: 6px;
    margin-bottom: 20px;
}
.alert-success { background: #c6f6d5; color: #22543d; }
.alert-error { background: #fed7d7; color: #822727; }
.alert-warning { background: #feebc8; color: #744210; }
.alert-info { background: #bee3f8; color: #2c5282; }

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}
.badge-success { background: #c6f6d5; color: #22543d; }
.badge-warning { background: #feebc8; color: #744210; }
.badge-danger { background: #fed7d7; color: #822727; }
.badge-info { background: #bee3f8; color: #2c5282; }